This kit has 7 LEDs that are used to display a random dice number every time the 'start' button is pressed. A PIC micro-controller controls the dice. The 'start' switch mounts directly onto the board allowing it to be used as built or the dice can be housed into an enclosure. Kit includes:. 1 x PP3 battery clip lead (heavy duty). 1 x 3 AA battery cage with clip. 7 x red 5mm diffused LEDs - 275mCd. 7 x 330R resistors. 1 x 6mm PCB mount tactile switch. 1 x IC socket 8 pin. 1 x electronic dice kit PCB. 1 x pre-programmed IC. Size: L66 x 39.5mm. Requires: 3 x AA batteries, soldering iron, solder, and wire cutters.